It occurred to Usedcarsalesman last year, but really sunk in yesterday after he saw this Prius Taxi: hybrid power and other efficiency- enhancing technology such as map-based GPS navigation for cars might greatly improve the efficiency of traditional automotive-based service businesses such as Taxi Cab companies and Messenger companies. Typically these businesses use gas-engine cars that have to idle constantly and drivers that must have fluent knowledge of local roadways to survive on the job.
Usedcarsalesman even thinks that In Los Angeles, hybrid cars with GPS Navigation could enhance the public's demand for Messenger services over the next 20 years. Think about this possibility: knowing that he can employ a Messenger Company's precision-guided, non-gas-hogging car to run errands for him, Usedcarsalesman decides to get out of the weekend-using, personal errand-business for good. Yes, Usedcarsalesman and others wouldn't necessarily know the drivers doing the jobs. But they also wouldn't have to fear that issues of fuel consumption and navigation would affect drivers' concentration on the complicated details of weekend deliveries. As such, consumer confidence in Messenger companes might grow, as would demand for their services.
What gets better is, down the road, when you take the driver out of the equation and have self-driving, GPS-guided hybrid autos. Usedcarsalesman would simply load his stuff in to the automated vehicle and it would drive to prearranged destinations; people on the receiving end would do the rest. But, unfortunately, Johnny Cab (see Paul Verhoeven's 1991 "Arnold" film, Total Recall) is still a generation or more away.